燙(tang)金(jin)(jin)工藝是(shi)利用熱(re)壓(ya)轉移的(de)原理，將電(dian)(dian)(dian)(dian)化(hua)鋁中的(de)鋁層(ceng)(ceng)(ceng)轉印到承印物表面(mian)以形成特(te)殊的(de)金(jin)(jin)屬(shu)效果，因(yin)燙(tang)金(jin)(jin)使用的(de)主(zhu)要材(cai)料(liao)是(shi)電(dian)(dian)(dian)(dian)化(hua)鋁箔(bo)，因(yin)此(ci)燙(tang)金(jin)(jin)也(ye)叫(jiao)電(dian)(dian)(dian)(dian)化(hua)鋁燙(tang)印。電(dian)(dian)(dian)(dian)化(hua)鋁箔(bo)通常(chang)由(you)多層(ceng)(ceng)(ceng)材(cai)料(liao)構成，基材(cai)常(chang)為P E，其次是(shi)分離涂層(ceng)(ceng)(ceng)、顏(yan)色涂層(ceng)(ceng)(ceng)、金(jin)(jin)屬(shu)涂層(ceng)(ceng)(ceng)（鍍鋁）和膠水涂層(ceng)(ceng)(ceng)。